19.12.11

Difference Between CDMA EDGE,WCDMA TD HSDPA HSUPA

Don't you ever  confused those 3G ,4G Broadband Standard listed on the phone specification? Below provide some information about the broadband standard use by TEL CO .

First, Let look at  CDMA2000, also known as EVDO, CDMA 1X  ,It
all catogorise under CDMA ,it's not 3G
You can Refers to the CDMA2000 EVDO data network at WIKI to know more on this Standard.

HSDPA refers to an upgraded version of the 3G network, commonly known as 3.5G, 3G networks can provide much faster than the average transfer rate that 2.5 G EDGE.

HSUPA
refers to the" speed up "version of
HSDPA 3.5G networks ,it  provide faster transfer rate than HSDPA network bandwidth

GSM refers to what we commonly referred to as 2G, Mobile 

 
GRPS is the GSM data network, providing low-speed data transmission services;

EDGE is an upgraded version of GRPS provides faster transmission speed than GPRS, the fastest 230K

WLAN refers to a wireless LAN aka wireless area network

WIFI is one of  the most common type of WLAN, the wireless router's signal is the WIFI signal transmitting

WAPI is a WLAN, WIFI, and almost the same standard ,it enhance with password validation  functions, WIFI and WAPI are compatible

WiMax is a quasi-3g technology, there is no official international standard for 3G



Check out the progress for the GSM tecnologic recent year :
GSM → GPRS → EDGE → WCDMA → HSDPA → HSUPA → HSPA+ → LTE FDD

HSPA+, or Evolved High-Speed Packet Access, is a technical standard for wireless, broadband telecommunication. HSPA+ was first defined in the technical standard 3GPP release 7. HSPA+ provides an evolution of High Speed Packet Access and provides data rates up to 84 Megabits per second (Mbit/s) to the mobile device and 22 Mbit/s from the mobile device. Technically these are achieved through the use of a multiple-antenna technique known as MIMO (for “multiple-input and multiple-output”) and higher order modulation (64QAM) or combining multiple cells into one with a technique known as Dual Cell.(WIKI)
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